Specification BatteriesIncluded : 1 Brand : BUZHI BulletPoint1 : ST-100-Pro Underwater Strobe suitable for most of Seafrogs and camera cases which have the optical fiber interface. BulletPoint2 : ST-100 Pro and TTL is only compatible with camera, connected by USB. BulletPoint3 : Max. diving depth is up to 100m/328ft, it can be used at water temperature between 0℃ and 40℃. BulletPoint4 : Powered by 4 * AA alkiline or nickel metal hydride(NiMH) batteries, use new batteries only.(Batteries are not included.) BulletPoint5 : Before using the equipment underwater, check that the is watertight and ready for use. Color : Multicolor ConnectivityTechnology1 : USB ConnectivityTechnology2 : Bluetooth ExternallyAssignedProductIdentifier1 : 718750220509 ExternallyAssignedProductIdentifier2 : 0718750220509 HardwareInterface1 : usb HardwareInterface2 : bluetooth Hazmat1 : UN1950 ItemName : BUZHI Strobe ST-100-Pro Flash Strobe Diving Light Waterproof Max. 100m/328ft 5600K with Optic Cable Housing Diving Case for Underwater Photography. ItemPackageQuantity : 1 ItemTypeKeyword : on-camera-macro-and-ringlight-flashes Manufacturer : BUZHI Material1 : Plastic Material2 : Metal Material3 : Aluminum PartNumber : MSUS-D7190-HKX ProductDescription : Specifications: Brand: Material: PC Flashing Index: GN: 32 (overload ISO100) Digital Support: Optic Cable (compatible with all cameras) Digital Support: USB Cable (compatible for camera TTL) Flash Point: 100 x 100 Battery: 1.5V alkaline/ AA battery/ 1.2V nickel metal hydride/ AA battery(Not included) Flash Time: AA alkiline battery: 500 times / AA nickel metal hydride battery: 600 times Reflect Speed: 5s (alkaline) / 4s (nickel metal hydride) Flash Support: Support 5 pin socket & optic cable connection Reflect Instructions: LED light (red) Color Temperature: 5600K Focusing Light: 3W LED, manual/auto (auto 8s close), auto close when exposure Pressure Depth: 100m/328ft Exposure Control: optical cable/ USB synchronize with TTL, adjust the luminosity (flash index), M grade by turnable button Index Grades: 11 grade (GN1 / 1.4 / 2.8 / 4 / 5 / 5.6 / 8 / 11 / 16 / 22 / 32) TTL Compensation: 11 stage (EV -0.3 / -0.7 / -1.0 / -1.5 / -2.0 / 0) (+0.3 / +0.7 / +1.0 / +1.5 / +2.0 ) Dimensions: 105 * 163 * 98mm Package Size: 22.0 * 19.0 * 11.5cm / 8.7 * 7.5 * 4.5in Package Weight: 1090g / 38.4oz Package List: 1 * ST-100-Pro Strobe 1 * Optic Cable 2 * Soft Light Len 1 * User Manual(English, Chinese) ProductSiteLaunchDate : 2024-06-03T08:58:41.278Z SafetyDataSheetUrl : http://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=84985&brand=ALDRICH&PageToGoToURL=http%3A%2F%2Fwww.sigmaaldrich.com%2Fcatalog%2Fproduct%2Faldrich%2F84985%3Flang%3Den Size : US Plug SupplierDeclaredDgHzRegulation : ghs